Improvement in sewing-machines



2 Sheets-Sheet 1.

' A. N. NEWTON.

Sewing Machine. No. 19,439. Patented Feb. 231858.

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' 2 Sheets-Sheet 2. A. N. NEWTON.

Sewing Machine. v No. 19,439. Patented Feb. 23, .1858.

5&2?? /%k tion. Fig. 2 is an end view. Fig. 3 shows lever ment. Fig. 7 shows the eontrivance for regu- 8 is a contrivancc for securing the spool conment of the works. At one end is a guide for ings F F, and receives the lever D through a in the first part of the ascent of the needle,

UNITED STATES ABNER N. NEIVTON, OF

PATENT OFFICE...

RICHMOND, INDIANA.

IMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Lett rs Patent No. 19,439, dated February 23, 1858.

To all whom it may concern: I

Be itknown that I, ABNER N. NEWTON, of the city of Richmond, in the county of Wayne and State of Indiana, have invented certain new and useful Improvements in Sewing-Machines; and I do hereby declare that the following is a full, clear, and exact description'of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1 is a perspective view of my inven- 0. Fig. 4 shows lever D. Fig. 5shows feed hand K. Fig. 6 is a top view of feed arrangelating the tension of the needle-thread. Fig.

taining the needle-thread upon its shaft or axle.

A is the bed-plate or platform of the machine.

a is a slot or opening for the passage of the shuttle and carrier.

B B B is aframe for the support and attachthe needle-bar; at the other is hinged lever D. Its shape is sufliciently indicated in the drawings. It may be secured to the bottom A in any secure and permanent manner.

O is a lever, by means of which motion is communicated to the needle-bar, and also to the lever D. It is pivoted in upright bearlong mortise. (Shown at Fig. 3.) Motion may be communicated to lever O by means of a crank and pitman or-direetly by the hand.

D is a lever, whose shape is shown in Fig. 4.. Its upper end is curved in order to adapt it self to the shape of the slot 8. This slot 8 receives a pin, 1), from lever G, and is so shaped as nearly to coincide with the motion of pin thereby allowing a loop to be formed before the starting of the shuttle. The slot then suddenly deflects, so as to give the shuttle a quick passage nearly through, and graduates again to the segment described by pin 1).

E is abar or pitman connecting lever D with the shuttle-carrier.

F F are two upright bearings situated upon the frame B, as shown. They furnish support to lever O, and also to the tightencr f. f is a contrivanee for tightening the needle-thread. It is composed of a short shaft, a weighted arm,

to approach a perpendicular and relieve the thread from a corresponding amount of ten sion, and thereby equalizing the-tightness of the thread.

G is a set of upright bearings for the spool H.

H is a spool to furnish the needle-thread.

h is a shalt or mandrel upon which the spool H is received. Upon one end of this mandrel are three flanges, shaped and situated as shown at Fig. 8. There is also a band, h, with similar flanges upon it. These flanges are used instead of a cone, in order that their edges may indent the spool and prevent its slipping. Shaft h is first forced into the spool as far as convenient. The band h is then insinuated between the spool and shaft, and the spool is "ready to be placed in the machine. The design of this eontrivance is to afford a true mandrel for a spool of any sized bore.

I is the needle-bar, of any ordinary form, except that upon its lower end is the incline plane for operating the cloth-feed K.

J is a cloth-holder or eheck-feed. Its foot is forked, forming a passage for the needle, and also acting as a guide to the feed-hand K. It is held down upon the cloth by a spiral spring.

K is the feed-hand. Its shape is shown at Fig. 5. Its upper end is a spring which throws the foot back to renew its hold.

k is an incline, which,- being touched by the incline 5 upon the needlebar, gives the motion for feed.

Z is a spring that forces the foot down upon the cloth and secures certainty in thefeed.

Z is the foot with serrated under surfaces.

It is also forked, like the foot of clothholder J but each of the prongs of foot Z are grooved upon the under side, so that they may slide upon the prongs of holder J, using them as guides, and being lifted up by them when adjusting the cloth.

m is a set-screw upon feed-hand K, to regulate the length ofstitch.

I would state that the slot 8 of lever D may 1. The slotted lever D, in combinationiwith be transferred to lever 0, running lengthwise mortised lever O, for the purposes herein set of said lever and the mortise of lever C transforth. ferred to D. By this arrangement the needle 2. The combination of levers O D with the is made to rest in its upward motion while needle-bar I, in the manner herein described. the shuttle (whose motion would be uniform) T was passing through the loop. The needle a ABNER NEWTON would also rest in its descent at the same point. Attest:

What I claim as new and useful and desire JOHN FINLEY, to secure by Letters Patent, is- JOHN HOLLOPETER. 

